Texas Irrigator License - Exam Review Questions and Answers 100% Pass, Exams of Water and Wastewater Engineering

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Texas Irrigator License

- Texas Rules & Regulations, Backflow and Equations

Exam Review Questions and Answers 100%Pass

David Mungai [Date] [Course title]

Texas Irrigator License - Texas Rules &

Regulations, Backflow and Equations Exam

Review Questions and Answers 100%Pass

TCEQ - Answer>> Texas Commission on Environmental Quality IAC - Answer>> Irrigator Advisory Council Irrigation System - Answer>> Assembly of parts permanently installed for the controlled distribution & conservation of water to irrigate plants, reduce dust or control erosion. License Exemptions for Landscapes (SubCh A) - Answer>> Plumber Engineer, Architect or Landscape Architect where irrigation is incidental to their profession. Work by homeowner on an area owned or occupied by them as their home. Maintenance person at the property they maintain. Agriculture department Anyone working under a licensed irrigator on site. Business owner that employs an irrigator, but must follow rules. Commision Powers & Duties (SubCh B) - Answer>> Enforce:

(290.44.h) - Answer>> All water connections from public drinking water must be protected from contamination where potential hazard exists. Install at the meter through air gap or back flow preventation device. Cross Connection Control Program (290.44.i) - Answer>> Annually inspect & test backflow prevention device. Must be inspected upon installation Irrigator-in-Charge (344.1.25) - Answer>> Irrigator responsible for all irrigation work performed by an exempt business owner. Display of Licenses (344.33) - Answer>> Must prominently display license # at employment and must be able to present license if asked. Duties & Responsibilites of Irrigators (344.35) - Answer>> Comply with the rules. Be knowledgeable of and responsible for all permits, contracts, agreements, advertising & irrigation services performed with the license. Supervise all irrigation services. Using stamp or seal correctly. Obtaining permits & inspections to install system.

Follow local rules. Use correct backflow prevention device. Maintain irrigation system records. Conserve water. Develop & follow irrigation plan for each new system. Design system that complies with rules. Provide on-site supervision. Provide supervision to tech when connecting water supply or any other work. Complete irrigation system with 1. walk through, 2. inspection checklist, 3. irrigator's sticker on ctrl or inspection, 4. design plan. Sell, consult, maintain, alter, repair or service by rules. Give advertisements, contracts and warranties that follow rules. Install irrigation system that follows rules. Records (344.38) - Answer>> Keep records for 3 years from date that can be available within 10 days. Seal Display

Shape: Like an L Back Pressure: No Constant Pressure: No more than 12 hrs in 24-hr period. Install Height: Vertically with min of 6" higher than all downstream piping and highest downstream head. Install: No shut-off valves downstream. Must be on discharge side of each control valve. Backflow - Answer>> Unwanted reversal of water flow Backpressure - Answer>> Where pressure in the discharge (outlet or downstream) side is greater than pressure in the supply (inlet or upstream) side. i.e. Gravity from elevation, pump, steam/air pressure. Backsiphonage - Answer>> Backflow from negative pressure in the system. i.e Break in city main line or fire department using excessive amount of water. Types of Backflow Preventors - Answer>> Air Gap Atmospheric Vacuum Breaker (AVB) Pressure Vacuum Breaker (PVB) Double Check Valve Assembly (DCVA or DC) Reduced Pressure Principle Device (RP or RPZ)

+Double Check Valve Assembly (DCVA) - Answer>> Backflow device that uses 2 shut-off valves and 2 check valves to prevent backflow. Degree of Hazard - Answer>> Measure of risk to public health. Substances that affect this include pollutants & contaminants. Pollutant - Answer>> Substance that may affect color or odor, but not create health hazard. Contaminant - Answer>> Substance that may cause illness or death if ingested. Any system labeled as health hazard and that could contain contaminants must use a backflow prevention device and by tested annually. Pressure Vacuum Breaker (PVB) - Answer>> Backflow prevention device that uses a spring-loaded check valve and introduction of air to prevent back siphonage. Reduced Pressure Principle Device (RP or RPP or RPZ) - Answer>> Backflow prevention device that uses 2 independently acting check valves and an automatic operating pressure differential relief valve between the 2 check valves.

• Answer>> AHP= - Answer>> S-L
• Must be >= MHP